Gangrene set in and he had to have his leg amputated.
他的腿生了坏疽，必须截除。
First, gently clean the amputated part with water or saline.
首先，使用清洁水或生理盐水小心清洗断指。
Do not put the amputated part itself directly on ice. That could damage it more.
不要直接把断指放到冰块中，那样会使断指损伤更严重。
He had to have one leg amputated above the knee.
他的一条腿不得不从膝部以上截断。
When gangrene set in, his foot had to be amputated.
他的脚生了坏疽，必须截除。
When gangrene set in, his foot had to be amputated.
他的脚生了坏疽，必须截除。
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